Slr-220/Sgm - Leakwise ID-220 SERIES User Manual

7 SLR-220/SGM

The description below refers to firmware version 4.23.
The SLR-220 is basically the same as SLC-220, but it can receive data from a sensor connected
to a remote SLC-220. To accomplish this, the SLC-220 and the SLR-220 are both equipped with a
GSM modem, as the data between the two units is transferred through text (SMS) messaging.
The SLR-220/GSM can support a maximum number of 4 sensors. Some of them can be Local
sensors that are connected directly to TB10 of the SLR-220. The rest of the sensors are Remote
sensors, each one connected to a remote SLC-220/GSM. Each Remote SLC-220 can be
connected to local sensors, up to four.
For example, the SLR-220 can support:
1. One Remote sensor and three Local sensors, or
2. Two Remote sensors connected to different SLC-220 units and two Local sensors, or
3. Two Remote sensors connected to the same SLC-220 unit and two Local sensors, etc.
Be careful when assigning the sensors in the SLR-220 receiver and in the Remote SLC-220
unit/s:
1. The names of Local sensors of the SLR-220 can be any names.
2. The names of Remote sensors in the SLR-220 must begin with "SRV", for example:
"SRV TANK 14".
3. The names should be in capital letters.
4. The name of a specific Remote sensor must begin with "RMT" and end with "#1" or "#2" or
"#3" or "#4", according to the destination sensor number in the SLR-220. For example:
"RMT TANK 14#2" will cause this remote sensor to be displayed as sensor #2 named
TANK 14 in the SLR-220.
5. The calibration parameters set in the remote SLC-220 (for the Remote sensor) will be used
to determine the status of this sensor. The data, including the measured signal, will be
sent to the SLR-220, and will be used to display, turn on Light and activate the associated
Outputs board. In future firmware version, the SLR-220 will update the status according to
the highest message serial number received: If for example message number 40 was
received, and afterwards message number 39 is received, message 39 will be ignored.
Note:
A Remote sensor in the SLR-220 will be not be seen at TB10 on the Main board as if it is scanned
by the SLR-220 as a Local sensor (the small LED will not blink for a remote sensor).
The phone number of the receiving SLR-220 is set as human user 1 in the Remote SLC-220.
This user should be enabled and set for maximum detailed <Status List> – Refer to section 6.1.1
User Configuration. The other users of the Remote SLC-220 can also be set to accept
messages if required.
In the SLR-220 firmware version 4.23, the human users can be set to receive updates as usual.
This is useful for the local sensors of the SLR-220. The remote sensors should better update the
users directly from the remote SLC-220 to get a faster response time. The SLR-220 currently
doesn't inquire the remote SLC-220 units, but only waits for updates.
When the SLR-220 receives a text message from a remote sensor (RMT) intended for a remote
channel (SRV), it analyzes the message and extracts the status and signal. Then the appropriate
sensor channel is updated by the received sensor signal. The received status and signal from the
remote sensor is used for updating the Lights on the front panel, and also for updating the relays
and 4-20mA outputs and optional LCD.
SLC-220 User Guide Rev 2.0
65
June 2018